Neornithes Gadow, 1893 - living birds Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900 Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988 [Order] Strigiformes Wagler, 1830 - owls Family Strigidae Vigors, 1825 - owls Subfamily Surniinae del Hoyo et al., 2014 Genus Micrathene Coues, 1866 [monotypic] Micrathene whitneyi (J.G. Cooper, 1861) - elf owl Micrathene whitneyi graysoni Ridgway, 1886